The Collaborative International Dictionary
Cardiac passion
Cardiac \Car"di*ac\, a. [L. cardiacus, Gr. ?, fr. ? heart: cf. F. cardiaque.]
(Anat.) Pertaining to, resembling, or hear the heart; as, the cardiac arteries; the cardiac, or left, end of the stomach.
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(Med.) Exciting action in the heart, through the medium of the stomach; cordial; stimulant.
Cardiac passion (Med.) cardialgia; heartburn. [Archaic]
Cardiac wheel. (Mach.) See Heart wheel.
Wiktionary
cardiac passion
n. (context medicine archaic English) heartburn